1. Mission UPSC - You can get notes (printed/handwritten) of every recognise coaching here, NCERT books, currents affairs books of different coaching, optional notes, Ranker's notes, UPSC relevant books and so many other things which is useful for UPSC.
2. VisionIAS - Video lectures of visionIAS, printed notes, current affairs and other things, model answers of previous year questions.
3. NCERT books
4. PIB - PIB news and ALL INDIA RADIO news
6. Upsc papers
7. Upsc syllabus
Other than this there is a channel of The Hindu zone on TELEGRAM app in which daily all the newspaper (The Hindu, TOI, IE, DAINIK JAGRAN etc) uploaded in pdf version.
You can also subscribe study IQ education channel on YouTube where daily The Hindu editorial brief discussion video upload in Hindi as well as in English.